Rain-alarm.



W. L. LARSON.

RAIN ALARM. .APPucmou FILED Aug-l0, msl

1,253,986. 4 Patented JaiL15,1913 A wmmsss g L QINVENTO R 7 BY Z r a UNITED STATES IfTENT OFFICE;

leafless:

' eagerness-that at waaa ea an an M-th'iUnittH I w s mea e Re ae pag are 11;

se we magma; eveaaventea era; agefiit ltifiirovements in Rainejjnvention resides {frm of this char- 25 a H; 'ldtkiifiihechaniSin,holding stri and releasing string will be arranged 1n a novelmantier upon a special form of support.

\Vith vthese general objects in view and others that will appear as the nature of the invention is better und consists irtrthe novel co f ran {"1}; ya arts 1 M iii rug :1 part of this like-designating 'fresponding parts 4a a r F- agl tothe as y. fillets l? m wse a e? iiemai ielaeiweiemw o1 L etters latfnfc. Q ifiist 1c, 1916, sen;

spa" 'ese resqu'ia at mam-steam."

aaPa teiat ed Jan. 15, 1918. it? e '2 bent or base has 'aip ur d' yd rd supporting plate gfppportmg ears 3 bent '6 to form supports f( )1 :8}tid gears 4 bein rotatably mounted n Said ears 3. One the shafts '5 is proyided wlth an extension 6 forming a windlng stem for the spring 7 carried by said shaft 5. An escapement member 8 1s also mounted upon one of the shafts and engaged with one ofthe gears 4:, the last-mentioned shaft 5 also having a suitably bent arm 9 projecting therefrom in a direction opposite to the escapement member 8, said arm 9 having a hammer 10 mounted thereon for engagement with the bell 11. The bell 11 is suitably mounted upon smear-12 extended upwardly from said supportin plate or base 1 preferably adjacent one end of the latter.

A pair of supporting ears 13, extended upwardly from the supporting plate or base 1, outwardly of one of the supporting ears 3, serve to support the locking bar 1-1 engaged through the same. One supporting ear 13 is provided with a transverse slot 15 to permit horizontal swinging movement of the locking bar I l. The locking bar 14 is preferably square in cross section to prevent rotary movement of the same and longitudinal movement of the locking bar is prevented by a suitable pin 16 extended transversely through the same, forwardly of the ears 13. The rear end of thelocking bar 14 is bent at an angle as shown at 17 and normally engaged with a bent ortion of the arm-9to prevent rotation 0 the shafts 5 and gears 4; under influence of for a trai'ri tif gems-fifths shafts 5 provided the gears 7. The forward'enrllS of the locking bar 14 is bent upwardly, then extended forwardly and turned at 'a right angle. The end is then bent at an acute angle as shown at 19 opposite one end of the releasing stripQO, The en 1.nsin strip 2O area'suitabl-y learly shown in' l i'gifiiliiri" 2 of the spring 23.; isj en g6 uner end 21, opposite the;

"reinforced ,as t bent end th .ou'gh the Q19jof the {pair of s11p )orting,.ea' rs- Z gaiid bent uprdly from the supportingplateor base: 1,

ds 2l of the rel oncoiled portion of the spr1ng23 is en""agetl around a Fil t r tadimm ed upolr'breaking of the strip.

suitably bent and engaged through one of the openings 2-5 formed mthe plate or base 1. The strip 20'is extended longitudinally in the channel 26 formed by bending upwardly a pair of cars 27 .from the ,plate or base 1 and the forward end of sa1d strip 20 is mounted upon the reduced uppei extremity 28 of a supporting ear 29 also bent upwardly from the plate or basel-at the forward end of the channel 26.

It will be understood that all of the ears carried b the supporting plate or base 1 are bent wardly from the same after making the-proper incisions in the plate or base '1. The ears 24am preferably positionedbe- {tween-the openings formed by cuttin out andbending upwardly the ears'3 and one of the ears 2?, thereby locating the ears 124at the center ofthe supporting plate or base 1. The ears 27 are also preferably positioned at an angle to the longitudinal center of the supporting plate or base 1 ,to bring the inner end 21 of the strip 20 opposite the end 19 of the locking bar 14.

From the foregoing, it will be apparent "that asthe drops of rain fall upon the strip '20, and the strip becomes saturated, the strength of the same will be reduced "suili ciently to ermit the spring 23 to sever the :same,=the cut end 22 of said spring 23 engaging the bent end 19 of the locking bar 14 and swinging the same horizontally within the supporting ears 13 to withdraw the end 17 from engagementwith thearm 9. The 35 spring]? will then cause rotation of the shafts 5 and gears 4 causing operation of the escapement member 8, the hammer playing upon the bell I1to soundthe alarm.

It will be readily seen that this device is -especially adapted for use in -notifying a, 'party as soonas the rain begins to fall in order that the windows may be closed and the device may be placed upon the sill just outside of one of the windows.

While the "form of the invention herein "shown and described is what isbelieved to be the preferred embodiment thereof, it is 'neverthelesstobe understood that -mi-nor changes may be made. without departing "from the spirit; and scope-of the invention as 'claimed' 1 What Iclaiin as new is 1. In a signal'of the character described a base plate, a channel formed thereon,- a strip arranged in the channel adapted to'-'be 'broken, aspring mounted on the base and engagedwithone end-of the strip and norem-ally held against --movement thereby, an 'audible signal also 'mountedio'n the base so late, a motor for operating thesignal, a ocking bar operativelyengaged with the linotor to normally retain 1 the same against :rotation, "the spring engaging the 'lockin bar to release the motor to operatethe signa 2. An alarm of the. class described comprising a base, supportingimembers extcnded upwardly from said base, a bell mounted upon one of said supporting members, a train of cars, a means for operating said gears, a ocking member normally engaged with-the bell sounding means, ears extending from the base, certain of said ears forming a channel, a destructible member extended in said channel, supporting means for one end of said member, and a releasingspring engaged around the remaining ears and having one end adjustably secured in said base, the opposite end of said spring being engaged -witht-he-remaining. end of said destructible member and adaptedfor engagement with said locking memberwhen released to withdraw-said locking member from said bell sounding means.

3. A rain alarm,including a flat base, a bell 'inountedthercon, a sounder normally engaged with said bell, means to operate said sounder, said means including a train of gears and a spring to actuate the same, a. pair of brackets extending from the base and arranged in proximity to the-train of gears, one of said brackets being provided with an elongated slot, a locking lever supported in said brackets and movable in said slot, said lever having one end thereof arranged to normally engagesaid sounder to hold the same inoperative, and means adapted at times to move said lever to a releasing position. p

4. Arain alarm, including a base. a bell mounted thereon, a soundernormally engaged with'said bell, means toa'ctuate said sounder, a lever normally holding said sounder inoperative, means for moving said lever to a releasing position, said means in-, 195 eluding a destructible strip having one end. thereof fastened to the base-, ea'rs struck up from said base, a-sp'ring roiled about said ears and having-one end thereof secured to the base, the opposite end of the spring being bent to provide a hook 'adapted to be passed through the free end of the strip, the hooked end of the-spring adapted, uponbreaking'of the strip, to engage thelever to move the same out ,of contact with the sounder. l

5. A rain alarm including a base having a bell mounted thereon, sup-ports extending up from said base, atrainofgears mounted between-said supports, a sounderl normally engaged with saidbell and adaptedtobe actuated -by said gears, a' pair of brackets ar-. :ranged to one sideof said support, a lever su ported in saidbrackets. said'le'ver being is erally'movable and .having an end thereof bent at right angles-tonormally engage the sounder'whereby'to' hold the same inop- 'erative, a pair of guides arrange-din prox-' 'imity to. the opposite end 'of the'leven a de- *strtlctible fs'trip positioned between said 1.30

guides and having one of its ends fastened to In witness whereof I aflix my signature in the base, a pair of ears extending upwardly presence of two witne$ea. from the base, a spring cuiled about said ears and having one end thereof secured to WILHELM'L' LARSON IS the base, the opposite end of the spring be- Witnesses:

ing bent to provide a hook adapted to be M. J. Human,

fastened to the iree end of the stmp. LELA. Moumcx.

copies ot thin petent may be obtained for five cents each, by admixing the communion! of l'ltenh,

' Washington, D. c." 

